Forgetting-to-carry prevention assistance method, terminal device, and forgetting-to-carry prevention assistance system

ABSTRACT

A forgetting-to-carry prevention assistance method assists, in a terminal device, a user in preventing forgetting to carry a personal item. The forgetting-to-carry prevention assistance method includes acquiring a destination for the user; detecting the personal item that exists around the user; and in a case where the personal item associated with a category of the destination is not detected, notifying information on the personal item that is not detected.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Japanese Patent Application No.2018-043059 filed on Mar. 9, 2018, which is incorporated herein byreference in its entirety including the specification, drawings andabstract.

BACKGROUND 1. Technical Field

The disclosure relates to a technique of assisting a user in preventingforgetting to carry his/her personal item.

2. Description of Related Art

In Japanese Patent Application Publication No. 2010-55291 (JP 2010-55291A), a system that is mounted on an automobile is disclosed. Thein-vehicle system includes means for outputting a message that urges auser to confirm whether the user carries each personal item included ina personal item list corresponding to a mobile phone that cancommunicate with the system via near field wireless communication. Inthis in-vehicle system, in the case where a current location of theautomobile is a location that corresponds to a registered base location,a voice message is output from a speaker, the voice massage urging theuser to confirm that the user does not forget to carry each personalitem.

SUMMARY

The in-vehicle system disclosed in JP 2010-55291 A gives a reminder sothat the user does not forget to carry each personal item at a start ofthe automobile, and gives the reminder even when the user does notforget to carry each personal item. Thus, the user may be bothered bythe reminder. In addition, although the personal item(s) to be carriedgenerally differ(s) according to the destination, the in-vehicle systemdisclosed in JP 2010-55291 A always gives the reminder regarding thesame personal items.

The disclosure provides a technique of appropriately assisting a user inpreventing forgetting to carry a personal item.

A first aspect of the disclosure relates to a forgetting-to-carryprevention assistance method that assists, in a terminal device, a userin preventing forgetting to carry a personal item. Theforgetting-to-carry prevention assistance method includes acquiring adestination for the user; detecting the personal item that exists aroundthe user; and in a case where the personal item associated with acategory of the destination is not detected, notifying information onthe personal item that is not detected.

According to the first aspect, in the case where the personal item thatis associated with the category of the destination is not detectedaround the user, the information on the personal item that is notdetected can be notified (in other words, the terminal device can notifythe information on the personal item that is not detected).

Detecting the personal item may include detecting a distance from thepersonal item; and notifying the information may include, in a casewhere the distance from the personal item associated with the categoryof the destination exceeds a specified distance, notifying theinformation on the personal item. In the case where the distance betweenthe terminal device and the personal item is long, there is apossibility that the user has forgotten to carry the personal item, andthus, the information on the personal item may be notified (in otherwords, the terminal device may notify the information on the personalitem that is detected, and that is located at the distance exceeding thespecified distance from the terminal device).

The personal item may be detected when a confirmation request that issent from an in-vehicle device mounted on a vehicle is received. Thein-vehicle device may send the confirmation request to the terminaldevice, based on information on a state of the vehicle. Theforgetting-to-carry prevention assistance method may further includedetermining that the user has forgotten to carry the personal item inthe case where the distance from the personal item exceeds the specifieddistance.

A second aspect of the disclosure relates to a terminal device. Theterminal device includes a destination acquisition section configured toacquire a destination for a user; a personal item detection sectionconfigured to detect a personal item that exists around the user; and anotification section configured to, in a case where the personal itemassociated with a category of the destination is not detected, notifyinformation on the personal item that is not detected. According to thesecond aspect, in the case where the personal item that is associatedwith the category of the destination is not detected around the user,the terminal device can notify the information on the personal item thatis not detected.

A third aspect of the disclosure relates to a forgetting-to-carryprevention assistance system. The forgetting-to-carry preventionassistance system includes an in-vehicle device that is mounted on avehicle; and a mobile terminal that is possessed by the user. In thesystem, at least one of the in-vehicle device and the mobile terminalincludes a destination acquisition section configured to acquire adestination for the user, a personal item detection section configuredto detect the personal item that exists around the user, and anotification section configured to, in a case where the personal itemassociated with a category of the destination is not detected, notifythe user of information on the personal item that is not detected.According to the third aspect, in the case where the personal item thatis associated with the category of the destination is not detectedaround the user, the forgetting-to-carry prevention assistance systemcan notify the information on the personal item that is not detected.

According to the above aspects of the disclosure, it is possible toprovide a technique of appropriately assisting the user in preventingforgetting to carry the personal item.

BRIEF DESCRIPTION OF THE DRAWINGS

Features, advantages, and technical and industrial significance ofexemplary embodiments of the disclosure will be described below withreference to the accompanying drawings, in which like numerals denotelike elements, and wherein:

FIG. 1 is a diagram of a schematic configuration of an informationprocessing system in an embodiment;

FIG. 2 is a diagram of functional blocks of a mobile terminal;

FIG. 3 is a diagram of functional blocks of an in-vehicle device;

FIG. 4 shows an example of a personal item DB;

FIG. 5A is a view of an example of a tag ID registration screen;

FIG. 5B is a view of the example of the tag ID registration screen;

FIG. 5C is a view of the example of the tag ID registration screen;

FIG. 5D is a view of another example of the tag ID registration screen;

FIG. 6A is a view of an example of a personal item registration screen;

FIG. 6B is a view of the example of the personal item registrationscreen;

FIG. 7 is view of an example of a forgetting-to-carry preventionassistance sequence at the time of getting on a vehicle;

FIG. 8 is a view of a notification screen example;

FIG. 9 is a view of an example of a forgetting-to-carry preventionassistance sequence at the time of getting out of the vehicle; and

FIG. 10 is a view of a notification screen example.

DETAILED DESCRIPTION OF EMBODIMENTS

FIG. 1 shows a schematic configuration of an information processingsystem 1 in an embodiment. The information processing system 1 includesa mobile terminal 10 possessed by a user A; an in-vehicle device 20mounted on a vehicle 4; and a server 30 connected to a network 2 such asthe Internet. The server 30 is installed in, a data center, for example,and has a function of processing information that is sent from themobile terminal 10 and the in-vehicle device 20. The informationprocessing system 1 is a forgetting-to-carry prevention assistancesystem, and assists a user in preventing forgetting to carry a personalitem when the user travels (moves).

Each of the mobile terminal 10 and the in-vehicle device 20 is aterminal device that has a function of wirelessly communicating with awireless station 3 as a base station, and can be connected to the server30 via the network 2 so as to be able to communicate with the server 30.The mobile terminal 10 and the in-vehicle device 20 can be connected toeach other via the wireless station 3. The mobile terminal 10 and thein-vehicle device 20 can be also directly connected to each other vianear field wireless communication in a communication area of severaltens of meters or less.

The mobile terminal 10 is the terminal device such as a smartphone or atablet that can be carried by the user, and executes variousapplications. The applications may be preinstalled in the mobileterminal 10, or may be downloaded from the outside via the network 2 andinstalled in the mobile terminal 10. The mobile terminal 10 executes anapplication (hereinafter also referred to as a “scheduler”) that managesevent information input in a calendar by the user, and an application(hereinafter also referred to as a “travel plan application”) thatcreates a travel plan for the user by deriving a travel route, a travelduration, and the like from the event information managed by thescheduler.

For example, in the case where an event of “arrive at work at 8 a.m.” isinput as a weekday event in the calendar, the travel plan applicationderives a travel route for the vehicle 4 from the user's house to acompany (XYZ COMPANY) as the user's place of work, and calculates theuser's home departure time such that the user A can arrive at the officebefore 8 a.m. The travel plan application may calculate the user's homedeparture time by the user A by identifying the travel route with theshortest travel duration among a plurality of travel routes from theuser's house to the company and subtracting the travel duration from 8a.m. as the time at which the user is to arrive at the office. Forexample, in the case where the shortest travel duration is 20 minutes,the travel plan application may set the user's home departure time at7:30 a.m. by adding a slight event change duration.

In the case where an event of “ABC GOLF COURSE at 10 a.m.” is input as aweekend event in the calendar, the travel plan application derives thetravel route for the vehicle 4 from the user's house to ABC GOLF COURSE,and calculates the user's home departure time such that the user A canarrive at ABC GOLF COURSE before 10 a.m. As described above, the travelplan application calculates the user A's home departure time byidentifying the travel route with the shortest travel duration andsubtracting the travel duration from 10 a.m. as play start time. Forexample, in the case where the travel duration is estimated to be oneand a half hours, the travel plan application may set, the user's homedeparture time at 8:20 a.m. by adding the slight event change duration.

Thus, the travel plan application derives the user's travel plan for aday, that is, a travel schedule including a destination, travel unit,the departure time, and the like from the event information managed bythe scheduler. At five minutes before the derived departure time, thetravel plan application notifies the user that it is five minutes beforethe departure time with the use of voice or the like, and thus assiststhe user in executing the event input in the calendar. Note that thetravel plan application may notify the scheduler of the derived travelschedule, and the scheduler may notify the user that it is five minutesbefore the departure time. In the embodiment, the scheduler and thetravel plan application are installed as separate applications in themobile terminal 10. However, the scheduler and the travel planapplication may be configured as a single application.

Furthermore, the mobile terminal 10 executes an application (hereinafteralso referred to as a “forgetting-to-carry prevention assistanceapplication”) that assists a user in preventing forgetting to carry apersonal item, independently or in cooperation with the in-vehicledevice 20. In the information processing system 1 of the embodiment,items that the user A brings to the destination (i.e., personal items)are registered in the server 30 in advance. The forgetting-to-carryprevention assistance application has a function of determining whetherthe user has forgotten to carry the personal item.

FIG. 2 shows functional blocks of the mobile terminal 10. The mobileterminal 10 includes a processing unit 100, an input unit 130, an outputunit 132, a storage unit 134, a global positioning system (GPS) receiver136, a first communication unit 138, and a second communication unit140. The processing unit 100 has a function of executing the variousapplications. More specifically, the processing unit 100 has a functionof executing a scheduler 102, a travel plan application 104, and aforgetting-to-carry prevention assistance application 110. The pluralityof applications that are executed by the processing unit 100 cancooperate with each other by exchanging data therebetween. In additionto these applications, the processing unit 100 may be also able toexecute a navigation application (hereinafter also referred to as “naviapp”) and other applications. The forgetting-to-carry preventionassistance application 110 executes functions of a destinationacquisition section 112, a personal item identification section 114, aconfirmation request acquisition section 116, a personal item detectionsection 118, a determination section 120, and a notification section122.

Each of the various functions of the mobile terminal 10 can be realizedby a circuit block, memory, and another Large-Scale integration (LSI) ashardware, and can be realized by system software, an applicationprogram, and the like loaded in the memory as software. Accordingly, aperson skilled in the art will understand that each of the variousfunctions of the mobile terminal 10 can be realized by any of variousconfigurations that include the hardware only, the software only, or acombination of the hardware and the software, and thus each of thevarious functions of the mobile terminal 10 is not limited to any of thevarious configurations.

The input unit 130 includes an operation input unit operated by theuser, such as a touchscreen or buttons; and a voice input unit thatreceives the user's voice. The input unit 130 provides received data(information) to the processing unit 100. The output unit 132 includes adisplay section that displays a screen generated by the processing unit100; and a speaker from which the voice is output. The storage unit 134includes memory that stores the data. The GPS receiver 136 calculates alocation of a host terminal on the basis of a signal from a satellite soas to calculate a latitude and a longitude of the location of the hostterminal.

The first communication unit 138 is a communication module thatcommunicates wirelessly with the server 30 via the wireless station 3.Although a standard of the wireless communication is not particularlylimited, the standard may be 3G (the third generation of mobilecommunication system), 4G (the fourth generation of mobile communicationsystem), or 5G (the fifth generation of mobile communication system),for example.

The second communication unit 140 is a communication module for wirelessPersonal Area Network (PAN) communication or wireless Local Area Network(LAN) communication in a narrower communication area than acommunication area of the first communication unit 138. The secondcommunication unit 140 has a function of communicating with thein-vehicle device 20 and also communicating with a wireless tag that isattached to the personal item, so as to acquire a tag ID from thewireless tag.

The wireless tag is a tag that has a function of exchanging data(transmitting and receiving data) with the use of the wirelesscommunication performed by a wireless PAN or wireless LAN system, andthe wireless tag in the embodiment is a Bluetooth (registered trademark)Low Energy (BLE) tag. The wireless tag includes identificationinformation (the tag ID) used to identify itself, and the user attachesthe wireless tag to the personal item to be carried. The secondcommunication unit 140 is operated as a master in a relationship withthe BLE tag and acquires the tag ID from the BLE tag. Tag ID acquisitionprocessing may be executed by the second communication unit 140 inresponse to receiving a personal item confirmation request that is sentfrom the in-vehicle device 20. However, the tag ID acquisitionprocessing may be executed in response to another factor, for example,in response to receiving a confirmation request from the travel planapplication 104 or a confirmation request from the user. Alternatively,the tag ID acquisition processing may be autonomously executed betweenthe second communication unit 140 and the wireless tag in accordancewith a BLE protocol.

FIG. 3 shows functional blocks of the in-vehicle device 20. Thein-vehicle device 20 includes a processing unit 200, an input unit 220,an output unit 222, a storage unit 224, a GPS receiver 226, a firstcommunication unit 228, a second communication unit 230, and a vehicleinformation acquisition unit 232. The processing unit 200 includes anavi app 202, a user state acquisition section 204, a confirmationrequest generation section 206, a left-behind personal item informationacquisition section 208, and a notification section 210.

Each of various functions of the in-vehicle device 20 can be realized bya circuit block, memory, and another LSI as hardware, and can berealized by system software, an application program, and the like loadedin the memory as software. Accordingly, a person skilled in the art willunderstand that each of the various functions of the in-vehicle device20 can be realized by any of various configurations that include thehardware only, the software only, or a combination of the hardware andthe software, and thus each of the various functions of the in-vehicledevice 20 is not limited to any of the various configurations.

The input unit 220 includes an operation input section operated by theuser, such as a touchscreen or buttons provided on a dashboard or acenter console in a vehicle cabin; and a voice input section thatreceives the user's voice. The input unit 220 provides the received data(information) to the processing unit 200. The output unit 222 includes adisplay section that displays a screen generated by the processing unit200; and a speaker from which the voice is output. The storage unit 224includes memory that stores the data. The GPS receiver 226 calculates alocation of a host terminal on the basis of the signal from thesatellite so as to calculate a latitude and a longitude of the locationof the host terminal.

The first communication unit 228 is a communication module thatcommunicates wirelessly with the server 30 via the wireless station 3.Although the standard of the wireless communication is not particularlylimited, the standard may be 3G (the third generation of mobilecommunication system), 4G (the fourth generation of mobile communicationsystem), or 5G (the fifth generation of mobile communication system),for example.

The second communication unit 230 is a communication module configuredto perform the wireless PAN communication or the wireless LANcommunication in a narrower communication area than a communication areaof the first communication unit 228. The second communication unit 230establishes a connection with the second communication unit 140 of themobile terminal 10 and wirelessly communicates therewith. The secondcommunication unit 230 or the second communication unit 140 may beoperated as the master.

The storage unit 224 of the in-vehicle device 20 registers an equipmentID of the second communication unit 140 as an equipment ID of thecommunication module that is mounted on the user A's mobile terminal 10.The storage unit 134 of the mobile terminal 10 registers an equipment IDof the second communication unit 230 as an equipment ID of thecommunication module that is mounted on the in-vehicle device 20 of thevehicle 4. In this way, the second communication unit 140 and the secondcommunication unit 230 can recognize each other, and thus the secondcommunication unit 140 and the second communication unit 230 cancommunicate with each other.

A description will hereinafter be provided on a structure for“forgetting-to-carry prevention assistance” in the embodiment. When theuser goes to his/her office, a wallet and a briefcase are usuallynecessary, but a cart bag (caddie bag) with golf clubs therein isunnecessary. On the other hand, when the user goes to the golf course,the wallet and the cart bag are necessary, but the briefcase isunnecessary. Thus, in general, an item (or items) to be carried by theuser differ(s) according to a destination. In view of the above, theinformation processing system 1 of the embodiment realizes a structurein which the user registers the personal item corresponding to thedestination in the server 30, and in the case where the user forgets tocarry the personal item, the user is notified of information on theleft-behind personal item (i.e., information on the left-behind personalitem is notified to the user). For example, the user registers thewallet and the briefcase as the personal items that the user carries tothe office, and registers the wallet and the cart bag as the personalitems that the user carries to the golf course, in the server 30.

The server 30 includes a personal item database (a personal item DB) inwhich the user's destination and the items to be carried to thedestination (the personal items) are associated with each other. Morespecifically, in the personal item DB, the destination and theidentification information (the tag ID) of the wireless tag, which isattached to the personal item, are associated with each other andstored. The user attaches the wireless tag to the personal item andregisters the tag ID of the attached wireless tag in association withthe destination in the server 30.

FIG. 4 shows an example of the personal item DB that is managed in theserver 30. The user A registers the destination “XYZ COMPANY” inassociation with the tag IDs “10000101” and “10030211” of the wirelesstags in the personal item DR. Here, “XYZ COMPANY” is a name of thedestination and is a facility name of the company where the user Aworks.

In addition, the user A registers the destination “GOLF COURSE” inassociation with the tag IDs “10000101” and “21391021”, and adestination “SHOPPING CENTER” in association with the tag IDs “10000101”and “34210200” in the personal item DB. Here, each of “GOLF COURSE” and“SHOPPING CENTER” is a category name of the destination and is one offacility categories set in map data such as map data of the navi app.Thus, the user registers the tag ID of the wireless tag, which isattached to the personal item, in association with the name of thedestination or the category name of the destination.

In this example, the user A attaches the wireless tag with the tag ID“10000101” to the wallet, attaches the wireless tag with the tag ID“10030211” to the briefcase, attaches the wireless tag with the tag ID“21391021” to the cart bag, and attaches the wireless tag with the tagID “34210200” to a shopping bag.

In the personal item DB, the tag ID and the name of the personal itemare registered and managed for the user A's destination. Hereinafter, acombination of the tag ID and the name of the personal item will bereferred to as “personal item information”. In the personal item DB, thepersonal item information regarding the user A and the personal iteminformation regarding various users who participate in the informationprocessing system 1 are recorded in association with the destination.

The user uses his/her own mobile terminal 10 to register the destinationand the personal item information in the server 30. Among the variousapplications that are installed in the mobile terminal 10, the travelplan application 104 may assist the user in a registration operation forthe tag ID (i.e., an operation of registering the tag ID). Initially,the user performs an operation of associating the tag ID of the wirelesstag that is attached to the item with a name (a nickname) of the item.

A description will hereinafter be provided on an example procedure ofthe registration operation for the tag ID performed by the user A. Theuser A causes the mobile terminal 10 to acquire in advance the tag ID ofthe wireless tag that is going to be attached or has been attached tothe personal item. In the embodiment, the wireless tag is the BLE tag.Thus, before initiation of the operation, the user A may place thewireless tag in the vicinity of the mobile terminal 10 and may cause thesecond communication unit 140 to acquire the tag ID of the wireless tag.

FIG. 5A shows an example of a tag ID registration screen. When the inputunit 130 receives an operation for displaying the tag ID registrationscreen from the user A, the travel plan application 104 generates thetag ID registration screen shown in FIG. 5A and displays the tag IDregistration screen in the output unit 132. Management numbers 11 a to11 d shown in the tag ID registration screen are numbers used to managethe tag IDs. The user A selects an unregistered management number toperform the registration operation for the tag ID. In the example shownin FIG. 5A, none of the tags ID have been registered, and thus the userA selects the management number 11 a in “1”.

FIG. 5B shows an example of a tag ID list 12 that is displayed on thetag ID registration screen. When the management number 11 a is selected,the travel plan application 104 displays the tag ID list 12 from whichthe tag ID to be registered in the management number 11 a is selected.In the tag ID list 12, the tag IDs of the plurality of wireless tags,which are acquired in advance from the second communication unit 140,are displayed. Note that, in the case where a list of the plurality oftag IDs is not created in advance, the user A may manually cause themobile terminal 10 to acquire the tag IDs of the wireless tags from thesecond communication unit 230, or may manually input the tag IDs andassociate one of the tag IDs with the management number 11 a.

FIG. 5B shows a situation where the tag ID of “10000101” is selected.When the input unit 130 receives a tag ID determination operation fromthe user A in the state where the tag ID of “10000101” is selected, thetravel plan application 104 associates the management number 11 a withthe tag ID “10000101” and generates a screen used to input the name (thenickname) of the personal item.

FIG. 5C shows an example of a name edit area that is displayed on thetag ID registration screen. The user A inputs the name (the nickname) ofthe item, to which the wireless tag of the tag ID “0000101” is attached,in a name edit area 13. Note that on a right side of the edit area 13, acheck box used to designate whether to always notify (i.e., whether toalways provide the notification) and an area used to select anotification distance are provided. “ALWAYS NOTIFY” means that thenotification is provided every time a forgetting-to-carry determinationcondition is satisfied. In the case where the user A desires “ALWAYSNOTIFY”, the user A checks the box. The notification distance is adistance regarding detection of the wireless tag, and the notificationdistance (the distance regarding detection of the wireless tag) can bedesignated at three stages. For example, “FAR” is 10 m, “NORMAL” is 2 m,and “NEAR” is 0.5 m. In the case where the corresponding item is locatedwithin the designated distance, it is determined that the item is notleft behind. In the case where the corresponding item is located fartherthan the designated distance, it is determined that the item is leftbehind.

FIG. 5D shows another example of the tag ID registration screen. FIG. 5Dshows a situation where the registration of the tag ID with themanagement number 11 a in “1” is completed and the user A starts theregistration operation for another tag ID. In this way, the user Aassociates the tag IDs with the names (the nicknames). The combinationsof the tag IDs and the names (the nicknames) are stored as the personalitem information in the storage unit 134.

After completing the operation of associating the tag IDs with thenames, the user A performs an operation of associating the tag IDs,which are used to identify the personal items, with the destination. Thetravel plan application 104 may assist in this operation.

FIG. 6A shows an example of a personal item registration screen. In thepersonal item registration screen, a destination input field 14 in whichthe destination is input, and a personal item list 15, from which thepersonal item to be associated with the destination is selected, aredisplayed. In the personal item list 15, the names (the nicknames) thatare associated with the tag IDs are read from the storage unit 134 anddisplayed such that the user A can select any of the displayed names(the displayed nicknames). The user A inputs the destination in thedestination input field 14 and selects the personal item from thepersonal item list 15.

Here, an address or a facility name may be input manually as a text intothe destination input field 14. However, in the case where the navi appis installed in the mobile terminal 10, the input in the destinationinput field 14 may be performed in a manner in which the destination isselected from a destination list that is registered in the navi app. Inthe case where the travel plan application 104 provides the destinationof a day to the forgetting-to-carry prevention assistance application110, the destination that is input in the destination input field 14 maybe the destination that is included in a destination database used bythe travel plan application 104.

FIG. 6B shows an input example in the personal item registration screen.“XYZ COMPANY” as the user's place of work is input in the destinationinput field 14, and the wallet and the briefcase are selected from thepersonal item list 15. When the input unit 130 receives a personal itemdetermination operation from the user A in this state, the travel planapplication 104 associates information on the selected personal items,that is, the personal item information as the combinations of the tagIDs and the names of the personal items, with the destination “XYZCOMPANY” and sends the information on the selected personal items to theserver 30.

In this way, the user A stores the personal item information and thedestination that are associated with each other, in the personal item DBof the server 30. In the embodiment, the server 30 manages the personalitem DB in which the destination and the personal item information areassociated with each other for each of the users. In this way, once thedestination is determined, the mobile terminal 10 can acquire thepersonal item information that is associated with the destination fromthe server 30, and thus can check whether the user has forgotten tocarry the personal item. Note that, in a modified example, the personalitem DB may be held by each of the mobile terminals 10.

In the information processing system 1 of the embodiment, theforgetting-to-carry prevention assistance application 110 can determinewhether the user has forgotten to carry the personal item at varioustiming. A description will hereinafter be provided on the case where theforgetting-to-carry prevention assistance application 110 determineswhether the user A has forgotten to carry the personal item at timing atwhich the user A gets on or gets out of the vehicle 4.

FIG. 7 is an example of a forgetting-to-carry prevention assistancesequence at the time when the user gets on the vehicle 4. In the mobileterminal 10, the forgetting-to-carry prevention assistance application110 has been started, and thus the forgetting-to-carry preventionassistance application 110 is in a state where the various functionsthereof can be executed. The forgetting-to-carry prevention assistanceapplication 110 may be started by the user A, or may be automaticallystarted when the mobile terminal 10 approaches the vehicle 4, forexample.

The destination acquisition section 112 acquires the user A'sdestination (S10). In the mobile terminal 10, the travel planapplication 104 derives the user's travel schedule including thedestination of a day, the travel unit, the departure time, and the likefrom the event information managed by the scheduler 102. The destinationacquisition section 112 receives the travel schedule in advance that isderived by the travel plan application 104. In this way, the destinationacquisition section 112 acquires the destination for the user A beforethe user A gets on the vehicle 4. Note that the user A may manuallyinput the destination for the user A. In any of these cases, thedestination acquisition section 112 acquires the destination informationthat is the information on the destination to which the vehicle 4travels before the user A gets on the vehicle 4.

The personal item identification section 114 identifies the personalitem that is associated with the destination acquired by the destinationacquisition section 112. More specifically, the personal itemidentification section 114 sends an acquisition request for the personalitem information that is associated with the destination, to the server30 via the first communication unit 138 (S12). This acquisition requestincludes the destination information that is acquired by the destinationacquisition section 112. Here, it is assumed that the destination is“XYZ COMPANY”. When receiving the acquisition request, the server 30searches the personal item DB with the use of a user ID of the user Aand the destination information, extracts the personal item informationregarding the user A, which is associated with “XYZ COMPANY”, and sendsthe personal item information to the mobile terminal 10 (S14). Here,with reference to FIG. 4, the personal item information that includesthe tag ID “10000101” and the name “WALLET” and the personal iteminformation that includes the tag ID “10030211” and the name “BRIEFCASE”are associated with “XYZ COMPANY”. Thus, these pieces of the personalitem information are sent to the mobile terminal 10 and acquired by thepersonal item identification section 114 (S16).

More specifically, the server 30 searches for the personal iteminformation associated with the name of the destination included in theacquisition request, in the personal item DB. The name of thedestination is the user A's destination itself and is “XYZ COMPANY” inthis case. Note that, in the case where the “DESTINATION” registered inthe personal item DB includes the category name of the destination, theserver 30 searches for the personal item information that is associatedwith the category of the destination included in the acquisitionrequest. For example, in the case where the name of the destinationincluded in the acquisition request is “ABC GOLF COURSE”, the server 30determines that the facility category name of “ABC GOLF COURSE” is “GOLFCOURSE”, and searches the personal item DB to determine whether each of“ABC GOLF COURSE” and “GOLF COURSE” is registered as the destination.With reference to FIG. 4, “GOLF COURSE” is registered as “DESTINATION”.Thus, when “ABC GOLF COURSE” is included in the acquisition request, theserver 30 extracts the personal item information that is associated with“GOLF COURSE” from the personal item DB, and sends the personal iteminformation to the mobile terminal 10.

The personal item identification section 114 acquires the personal iteminformation that is associated with the name or the category of thedestination from the server 30, and stores the personal item informationin the storage unit 134 (S16). In the embodiment, the travel planapplication 104 derives the travel schedule of the (given) day by a daybefore the (given) day. At the beginning of the day (12 a.m.), thedestination acquisition section 112 may acquire the destinationinformation from the travel plan application 104, and the personal itemidentification section 114 may acquire the personal item informationfrom the server 30.

Note that, even in the case where the travel plan application 104 doesnot derive the travel schedule of the day, the user A's destination isidentified when the user A inputs the destination in the navi app of themobile terminal 10 before leaving his/her home or when the user A inputsthe destination in the navi app 202 of the in-vehicle device 20 aftergetting on the vehicle 4. At this time, the destination acquisitionsection 112 may acquire the destination information, and the personalitem identification section 114 may acquire the personal iteminformation from the server 30. Note that, in the case where thepersonal item DB is stored in the storage unit 134 of the mobileterminal 10, the personal item identification section 114 can acquirethe personal item information that is associated with the name or thecategory of the destination with reference to the personal item DB ofthe storage unit 134.

In the weekday morning, five minutes prior to the user's home departuretime, the travel plan application 104 notifies the user A that it isfive minutes before the departure time by the voice or the like. Thenotified user A leaves his/her home and gets on the vehicle 4. The userstate acquisition section 204 acquires the user state with respect tothe vehicle 4 on the basis of vehicle state information that is acquiredby the vehicle information acquisition unit 232. The user state withrespect to the vehicle 4 includes at least a state in which the user isin the vehicle, and a state in which the user is not in the vehicle. Thestate in which the user is not in the vehicle includes a state in whichthe user has gotten out of the vehicle.

The vehicle information acquisition unit 232 acquires and suppliesoperation states of various switches, a camera image of the inside of avehicle cabin, and the like to the user state acquisition section 204.When the vehicle information acquisition unit 232 detects that the userA has brought an accessory switch or an ignition switch to an ON state,the user state acquisition section 204 detects that the user A is in thevehicle (S18). Alternatively, the vehicle information acquisition unit232 may provide the user state acquisition section 204 with the cameraimage, and the user state acquisition section 204 may execute imagerecognition processing on the camera image to detect that the user A isseated on a driver's seat. At this time, the user state acquisitionsection 204 detects that the user A is in the vehicle 4 and is a driver.In addition, since the user A's mobile terminal 10 and the in-vehicledevice 20 can connect to each other via the near field wirelesscommunication by using the second communication unit 140 and the secondcommunication unit 230, respectively, the user state acquisition section204 may detect that the user A is in the vehicle 4 through thecommunication of the second communication unit 230 with the secondcommunication unit 140. In some embodiments, the second communicationunit 140 and the second communication unit 230 should immediatelyestablish the connection when the mobile terminal 10 enters thecommunication area of the in-vehicle device 20 and the in-vehicle device20 enters the communication area of the mobile terminal 10. Here, asdescribed above, any one of the second communication unit 140 and thesecond communication unit 230 may be operated as the master.

The confirmation request generation section 206 generates the personalitem confirmation request (S20) and sends the personal item confirmationrequest to the mobile terminal 10 via the second communication unit 230(S22). The personal item confirmation request is a request that causesthe mobile terminal 10 to confirm whether the user has forgotten tocarry the personal item that is associated with the name or the categoryof the destination.

When the confirmation request acquisition section 116 in the mobileterminal 10 acquires the personal item confirmation request via thesecond communication unit 140 (S24), the personal item detection section118 detects the personal item that exists around the user A, that is,around the mobile terminal 10 (S26). This personal item detectionprocessing is processing in which the second communication unit 140acquires the tag ID from the wireless tag that exists around the secondcommunication unit 140, thereby detecting the item to which the wirelesstag is attached. At this time, the personal item detection section 118acquires the tag ID “10030211” from the wireless tag around the user A.The acquired tag ID is sent to the determination section 120.

The determination section 120 determines whether all the personal itemsidentified based on the personal item information acquired in S16 havebeen brought in the vehicle 4. In this example, in S16, the personalitem identification section 114 acquires two pieces of the personal iteminformation associated with “XYZ COMPANY”, more specifically, acombination of the tag ID “10000101” and the name “WALLET” and acombination of the tag ID “10030211” and the name “BRIEFCASE”. If thetag IDs that are included in all the pieces of the personal iteminformation have been acquired by the personal item detection section118, the determination section 120 determines that the user has notforgotten to carry the personal items (i.e., the personal items are notleft behind) (N in S28).

On the other hand, if the tag ID that is included in at least one pieceof the personal item information is not acquired by the personal itemdetection section 118, the determination section 120 determines that theuser has forgotten to carry the personal item (i.e., the personal itemis left behind) (Y in S28). That is, in the case where the personal itemthat is associated with the name or the category of the destination isnot detected by the personal item detection section 118, thedetermination section 120 determines that the user has forgotten tocarry the personal item. In this example, the personal item detectionsection 118 acquires the tag ID “10030211”, but does not acquire the tagID “10000101”. Accordingly, the determination section 120 determinesthat the user has forgotten to carry the item corresponding to the tagID “10000101”.

The notification section 122 identifies the information on the personalitem (the left-behind personal item) that corresponds to the tag ID“10000101” based on the personal item information, and notifies thein-vehicle device 20 of the information on the left-behind personal itemvia the second communication unit 140 (i.e., notifies the information onthe left-behind personal item to the in-vehicle device 20 via the secondcommunication unit 140). In the in-vehicle device 20, the left-behindpersonal item information acquisition section 208 acquires theinformation on the left-behind personal item via the secondcommunication unit 230, and the notification section 210 notifies theuser of the information on the left-behind personal item via the output,unit 222 (S30) (i.e., the notification section 210 notifies theinformation on the left-behind personal item to the user via the outputunit 222). The information on the left-behind personal item may be thename of left-behind personal item, and is “WALLET” in this case. Theuser is, notified by the screen display and/or the voice output (S32).

FIG. 8 shows a notification example that is displayed on the output unit222. As shown in FIG. 8, the notification section 210 may display anotification screen on the display section or may output notificationvoice via the speaker. Note that the notification regarding theleft-behind personal item may be provided by the notification section210 before the vehicle 4 starts. In this way, the user A can notice thathe/she has left the wallet in his/her house before the start of thevehicle 4.

In the case where the user A is the driver, it is considered that theuser A can easily check the display section of the in-vehicle device 20after getting on the vehicle 4. Thus, in the embodiment, thenotification regarding the left-behind personal item that is provided tothe driver is output from the output unit 222 of the in-vehicle device20. Note that the notification regarding the left-behind personal itemmay be output from the output unit 132 of the mobile terminal 10 or maybe output from both of the output unit 132 of the mobile terminal 10 andthe output unit 222 of the in-vehicle device 20.

In the embodiment, the left-behind personal item notification screen forthe driver is output from the output unit 222 that is provided in thedashboard or the center console of the vehicle 4. Thus, for a passengerother than the driver, the left-behind personal item notification screenis output from the output unit 132 of the passenger's mobile terminal 10instead of the output unit 222. For example, whether the user A is thedriver or the passenger may be determined by the image recognitionprocessing that uses the camera image of the inside of the vehiclecabin.

The user state acquisition section 204 can identify the user in thevehicle 4 by executing the image recognition processing using the cameraimage. When the user state acquisition section 204 detects that the userA is seated on the driver's seat, the confirmation request generationsection 206 adds information indicating that the user A is the driver inthe confirmation request sent to the user A's mobile terminal 10. Whenthe user state acquisition section 204 detects that the user A is seatedon a seat other than the driver's seat, the confirmation requestgeneration section 206 adds information indicating that the user A isnot the driver and is the passenger in the confirmation request sent tothe user A's mobile terminal 10. In this way, when the confirmationrequest acquisition section 116 in the mobile terminal 10 acquires theconfirmation request, it is determined whether the user A is the driver.If it is determined that the user A is not the driver, and thedetermination section 120 determines that the user A has forgotten tocarry the personal item in step S28 shown in FIG. 7 (Y in S28), thenotification section 122 does not notify the in-vehicle device 20 of theinformation on the left-behind personal item, and notifies the user A ofthe information on the left-behind personal item via the output unit132.

As it has been described so far, when the user A gets on the vehicle 4,the forgetting-to-carry prevention assistance application 110 searchesfor the personal item associated with the name or the category of thedestination, in the vehicle cabin. In the case where the personal itemdoes not exist in the vehicle 4, the forgetting-to-carry preventionassistance application 110 notifies the user A of the personal item asthe left-behind personal item. The notification regarding theleft-behind personal item is provided before the vehicle 4 startstraveling. In this way, the user A can notice the left-behind personalitem before leaving home.

Note that the personal item detection section 118 detects the personalitem existing around the mobile terminal 10, and at this time, thepersonal item detection section 118 may detect a distance from thepersonal item (i.e., a distance between the mobile terminal 10 and thepersonal item detection section 118). For example, the personal itemdetection section 118 detects the distance from the personal item on thebasis of intensity of the received signal from the wireless tag of thepersonal item. For example, in the case where the distance from thepersonal item is 10 m, there is a high possibility that the personalitem does not exist in the vehicle cabin. Accordingly, in the case wherethe detected distance exceeds a specified distance, the determinationsection 120 may determine that the user A has forgotten to carry thepersonal item (i.e., the personal item is left behind), and thenotification section 122 may notify the information on the personal item(i.e., the notification section 122 may provide the information on thepersonal item). As described with reference to FIG. 5D, a threshold ofthis distance may be set for each item.

Here, there is a case where the distance from the personal item, whichis detected by the personal item detection section 118, is equal to orshorter than the specified distance before the start of the vehicle 4but exceeds the specified distance after the start of the vehicle 4. Inthis case, the determination section 120 determines that the user A hasforgotten to carry the personal item, and the notification section 122may notify the information on the personal item. Note that, after thevehicle 4 travels through the specified distance (for example, 10 m) orlonger, the personal item detection section 118 may stop the processingof detecting the distance between the mobile terminal 10 and thepersonal item.

As it has been described with reference to FIG. 7, in the case where itis determined that the user A has forgotten to carry the personal itemwhen the user A gets on the vehicle 4, the notification regarding theleft-behind personal item is immediately provided. Thus, the user A cannotice the left-behind personal item and return to his/her house to pickup the left-behind personal item.

Next, a description will be provided on a forgetting-to-carry preventionassistance sequence at the time when the vehicle 4 arrives at thedestination. FIG. 9 shows an example of the forgetting-to-carryprevention assistance sequence at the time when the user gets out of thevehicle 4. When the vehicle 4 arrives at the destination, the personalitem information that is associated with XYZ COMPANY as the destinationis held in the storage unit 134 (S40). As described in S16 shown in FIG.7, the personal item identification section 114 acquires the personalitem information from the server 30 and stores the personal iteminformation in the storage unit 134, before the vehicle 4 leaves for thedestination.

In the case where the vehicle information acquisition unit 232 detectsthat a door is locked after the user A brings the accessory switch to anOFF state and the door is opened and closed, the user state acquisitionsection 204 detects that the user A has gotten out of the vehicle 4(S42). Note that the vehicle information acquisition unit 232 mayacquire the camera image of the inside of the vehicle cabin and providethe user state acquisition section 204 with the camera image, an theuser state acquisition section 204 may execute the image recognitionprocessing using the camera image to recognize that the user A has movedto the outside of the vehicle 4. At this time, the user stateacquisition section 204 detects that the user A has gotten out of thevehicle 4. In addition, the processing unit 200 of the in-vehicle device20 may monitor radio waves of a smart key, and the user stateacquisition section 204 may detect that the user A has gotten out of thevehicle 4 when intensity of the radio waves becomes smaller than aspecified threshold. Alternatively, when the second communication unit230 of the in-vehicle device 20 detects the distance between the secondcommunication unit 230 and the second communication unit 140 of themobile terminal 10 based on the intensity of the received signal, theuser state acquisition section 204 may detect that the user A has gottenout of the vehicle 4.

The confirmation request generation section 206 generates the personalitem confirmation request (S44) and sends the personal item confirmationrequest to the mobile terminal 10 via the second communication unit 230(S46). The personal item confirmation request is a request that causesthe mobile terminal 10 to confirm whether the user has left, in thevehicle cabin, the personal item carried to the destination.

In the case where the confirmation request acquisition section 116 inthe mobile terminal 10 acquires the personal item confirmation requestvia the second communication unit 140 (S48), the personal item detectionsection 118 detects the personal item that exists around the user who isoutside the vehicle 4, that is, around the mobile terminal 10 (S50).This personal item detection processing is the processing in which thesecond communication unit 140 acquires the tag ID from the wireless tagthat exists around the second communication unit 140, thereby detectingthe item to which the wireless tag is attached. The acquired tag ID issent to the determination section 120.

The determination section 120 determines whether the personal item thatis identified based on the personal item information held in the storageunit 134 exists around the user A. In the storage unit 134, the twopieces of the personal item information, which are associated with “XYZCOMPANY”, more specifically, the combination of the tag ID “10000101”and the name “WALLET” and the combination of the tag ID “10030211” andthe name “BRIEFCASE” are stored. If the tag IDs that are included in allthe pieces of the personal item information are acquired by the personalitem detection section 118, the determination section 120 determinesthat the user has not forgotten to carry the personal item (N in S52).

On the other hand, if the tag ID that is included in at least one piecesof the personal item information is not acquired by the personal itemdetection section 118, the determination section 120 determines that theuser has forgotten to carry the personal item (Y in S52). In the casewhere the personal item detection section 118 acquires the tag ID“10000101” but cannot acquire the tag ID “10030211”, the determinationsection 120 determines that the item corresponding to the tag ID“10030211” is forgotten to be carried (left behind), and provides thetag ID “10030211” to the notification section 122.

The notification section 122 identifies the information on theleft-behind personal item that corresponds to the tag ID “10030211”based on the personal item information, and notifies the user A of theinformation on the left-behind personal item via the output unit 132(S54). The information on the left-behind personal item may be the nameof the left-behind personal item and is “BRIEFCASE” in this case. Theuser is notified by the screen display and/or the voice output.

FIG. 10 shows a notification example that is displayed on the outputunit 132. As shown in FIG. 10, the notification section 122 may displaythe notification screen on the display section or may outputnotification voice via the speaker. Note that the notification regardingthe left-behind personal item by the notification section 122 may beprovided before the user A moves far from the vehicle 4. In this way,the user A can notice that he/she has left the briefcase in the vehiclecabin, at a location near the vehicle 4.

For the above reason, the user state acquisition section 204 monitors adistance between the vehicle 4 and the user A with the use of theintensity of the received signal from the mobile terminal 10 or thesmart key. When determining that the distance between the vehicle 4 andthe user A is equal to a specified distance (for example, 2 m), the userstate acquisition section 204 supplies a confirmation request generationcommand (i.e., a command to generate the confirmation request) to theconfirmation request generation section 206, and the confirmationrequest generation section 206 sends the confirmation request to themobile terminal 10. In this way, in the case where the user has left thepersonal item in the vehicle cabin, the forgetting-to-carry preventionassistance application 110 can notify the user of the left-behindpersonal item at a location where the user is not so for away from thevehicle 4.

In the case where the user state acquisition section 204 detectsgetting-on of the user A (i.e., detects that the user A gets on thevehicle 4) when the user A finishes work at the office and is going todrive the vehicle 4 home, the confirmation request generation section206 may send the personal item confirmation request to the mobileterminal 10. At this time, the personal item information that isassociated with XYZ COMPANY as the last destination is held in thestorage unit 134 of the mobile terminal 10. The personal item detectionsection 118 may detect the personal item(s) around the user A, and thedetermination section 120 may determine whether the user A has broughtback, from XYZ COMPANY, the personal items that the user A carried toXYZ COMPANY, that is, “WALLET” and “BRIEFCASE”. That is, when the user Agets on the vehicle 4, the forgetting-to-carry prevention assistancesequence, which is shown in FIG. 7, may be executed for the currentdestination and for the last destination. Note that, also in this case,the last personal item information and the last left-behind personalitem information may be deleted from the storage unit 134 when the userA arrives at his/her home. When the user A leaves his/her home nexttime, the forgetting-to-carry prevention assistance sequence that isrelated to the personal item information associated with the newdestination may be activated.

The disclosure has been described so far on the basis of the embodiment.The embodiment is merely illustrative, and a person skilled in the artwill understand that various modifications can be made to a combinationof the components and a combination of the processes and that suchmodifications fall within the scope of the disclosure. In theembodiment, the forgetting-to-carry prevention assistance application110 is installed in the mobile terminal 10, and the mobile terminal 10executes the forgetting-to-carry prevention assistance processing (i.e.,the processing for assisting in the prevention of forgetting to carrythe personal item). However, the forgetting-to-carry preventionassistance application 110 may be installed in the in-vehicle device 20,and the in-vehicle device 20 may execute the forgetting-to-carryprevention assistance processing.

What is claimed is:
 1. A forgetting-to-carry prevention assistancemethod that assists, in a terminal device, a user in preventingforgetting to carry a personal item, the forgetting-to-carry preventionassistance method comprising: acquiring a destination for the user;detecting whether the personal item exists around the user; and in acase where the personal item associated with a category of thedestination is not detected, notifying information on the personal itemthat is not detected, wherein: detecting whether the personal itemexists includes detecting whether the personal item exists when aconfirmation request that is sent from an in-vehicle device mounted on avehicle is received by the terminal device, the in-vehicle device sendsthe confirmation request to the terminal device based on information ona state of the vehicle, and the state of the vehicle includes at least astate in which the user is in the vehicle, and a state in which the useris not in the vehicle.
 2. The forgetting-to-carry prevention assistancemethod according to claim 1, wherein: detecting whether the personalitem exists around the user includes detecting a distance from thepersonal item; and notifying the information includes, in a case wherethe distance from the personal item associated with the category of thedestination exceeds a specified distance, notifying the information onthe personal item.
 3. The forgetting-to-carry prevention assistancemethod according to claim 2 further comprising determining that the userhas forgotten to carry the personal item in the case where the distancefrom the personal item exceeds the specified distance.
 4. A terminaldevice comprising a processing unit configured to execute one or moreapplications that cause the terminal device to: acquire a destinationfor a user; detect whether a personal item exists around the user; andin a case where the personal item associated with a category of thedestination is not detected, notify information on the personal itemthat is not detected, wherein: the terminal device detects whether thepersonal item exists around the user when a confirmation request that issent from an in-vehicle device mounted on a vehicle is received by theterminal device, the in-vehicle device sends the confirmation request tothe terminal device based on information on a state of the vehicle, andthe state of the vehicle includes at least a state in which the user isin the vehicle, and a state in which the user is not in the vehicle. 5.A forgetting-to-carry prevention assistance system that assists a userin preventing forgetting to carry a personal item, theforgetting-to-carry prevention assistance system comprising: anin-vehicle device that is mounted on a vehicle; and a mobile terminalthat is possessed by the user, wherein at least one of the in-vehicledevice and the mobile terminal includes a processing unit configured toexecute applications that cause the at least one of the in-vehicledevice and the mobile terminal to acquire a destination for the user,detect whether the personal item exists around the user, and in a casewhere the personal item associated with a category of the destination isnot detected, notify the user of information on the personal item thatis not detected, the at least one of the in-vehicle device and themobile terminal detects whether the personal item exists around the userwhen a confirmation request that is sent from the in-vehicle device isreceived by the mobile terminal, the in-vehicle device sends theconfirmation request to the mobile terminal based on information on astate of the vehicle, and the state of the vehicle includes at least astate in which the user is in the vehicle, and a state in which the useris not in the vehicle.